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Waterborne floating aluminum pigment and preparation method thereof

An aluminum pigment, floating technology, applied in inorganic pigment processing, chemical instruments and methods, fibrous fillers, etc., can solve the problems of poor floating effect and storage stability.

Inactive Publication Date: 2018-02-02
安徽天易金属新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a water-based leafing aluminum pigment and a preparation method thereof. The water-based leafing aluminum pigment solves the problems of poor floating effect and storage stability of the traditional water-based leafing aluminum pigment, and in the preparation method suggest some improvements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A preparation method of water-based leafing aluminum pigment, comprising the following steps:

[0025] a. Take flake-shaped oily aluminum-silver paste and add it to 5 times the amount of solvent, put it into a blender to stir, control the rotation speed to 300r / min, raise the temperature to 40°C, and stir for 30 minutes to prepare a mixed slurry. The used flaky oily aluminum silver paste has a solid content of 65% by mass, and the particle size of the contained particles is 5 μm; the used solvents are ethanol and isopropanol.

[0026] b. Take two components A and B, wherein component A is a mixture of diethylenediamine and water, component B is methyl orthosilicate, and drop components A and B into the product prepared in step a at a constant speed. In the mixed slurry, the dropping speed is controlled at 1 drop / second, and the dropping time is 2 hours. Control the mixing mass ratio of diethylenediamine and water in component A to be 1:2.

[0027] c. After dropping, k...

Embodiment 2

[0031] A preparation method of water-based leafing aluminum pigment, comprising the following steps:

[0032] a. Take flake-shaped oily aluminum-silver paste and add it to 6 times the amount of solvent, put it into a blender and stir at a speed of 350r / min, raise the temperature to 41°C, and stir for 35 minutes to prepare a mixed slurry. The used flaky oily aluminum silver paste has a solid content of 65% by mass and a particle size of 10 μm; the used solvents are isopropanol and n-propanol.

[0033] b. Take two components A and B, wherein component A is a mixed solution of ethylenediamine and water, and component B is an aqueous solution of tetraethyl orthosilicate, and drop components A and B into the product prepared in step a at a constant speed. In the mixed slurry, the dropping speed is controlled at 1 drop / second, and the dropping time is 2.5 hours. Control the mixing mass ratio of ethylenediamine and water in component A to be 1:2.5.

[0034] c. After dropping, keep ...

Embodiment 3

[0038] A preparation method of water-based leafing aluminum pigment, comprising the following steps:

[0039] a. Take flake-shaped oily aluminum-silver paste and add it to 7 times the amount of solvent, put it into a blender to stir, control the rotation speed to 380r / min, raise the temperature to 42°C, and stir for 40 minutes to prepare a mixed slurry. The used flaky oily aluminum silver paste has a solid content of 66% by mass and a particle size of 15 μm; the used solvents are n-propanol and propylene glycol methyl ether.

[0040] b. Take two components, A and B, wherein component A is a mixture of ammonia and water, and component B is an aqueous solution of sodium silicate, drop components A and B into the mixed slurry prepared in step a at a constant speed, The dropping rate is controlled at 1 drop / second, and the dropping time is 2.5 hours. Control the mixing mass ratio of ammonia water and water in component A to be 1:3.

[0041] c. After dropping, keep warm for 6 hou...

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PUM

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Abstract

The invention discloses a preparation method of a waterborne floating aluminum pigment, comprising the steps of adding flaky oily aluminum silver slurry into a solvent, heating to 40-45 DEG C, and stirring for 30-60 min; taking components A and B, wherein the component A is a mixed solution of water and one of bis(ethylenediamine), ethylenediamine or ammonia, and the component B is one of tetramethyl orthosilicate solution, tetraethoxysilane solution and sodium silicate solution; dropwise adding the components A and B into the mixed slurry; after dropwise adding, holding the temperature for 4-8 h, heating to 60 DEG C, adding calcium chloride solution or aluminum chloride solution, and dropwise adding a coupling agent; adding a surfactant, continuously stirring for 3-4 h, and performing cooling and suction filtering to obtain the waterborne floating aluminum pigment. The preparation method has the advantage that the waterborne floating aluminum pigment has good floating value and has good storage stability.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a water-based floating aluminum pigment and a preparation method thereof. Background technique [0002] Leafing aluminum pigments are mainly used in roof coatings, maintenance and commercial application coatings that require high protection. The traditional preparation technology of water-based leafing aluminum pigments mostly adopts simple surface treatment of oil-based aluminum pigments to achieve the floating effect. The water-based leafing aluminum pigments obtained by this treatment process are not ideal in floating and storage stability. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a water-based leafing aluminum pigment and a preparation method thereof. The water-based leafing aluminum pigment solves the problems of poor floating effect and storage stability of the traditional water-based leafing aluminum pig...

Claims

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Application Information

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IPC IPC(8): C09C1/64C09C3/06C09C3/08C09C3/12C09D7/62
CPCC09C1/642C09C1/644C09C1/648C09C3/006C09C3/06C09C3/08C09C3/12
Inventor 周辉董前年谷圣军陈国庆陈雪三朱双单
Owner 安徽天易金属新材料有限公司
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